export class Article{
title: string;
link: string;
votes: number;

constructor(title: string, link: string, votes?: number) {
this.title = title;
this.link = link;
this.votes = votes || 0;
}
voteUp(){
    this.votes++;
  }
  voteDown(){
    this.votes--;
    if(this.votes<=0){
      this.votes=0;
    }
}
domain(): string {
  try {
  const link: string = this.link.split('//')[1];
  return link.split('/')[0];
  } catch (err) {
  return '';
  }
  }

}